In a direct shear test the shear stress and normal stress on a dry sand sample at failure are 0.6 kg/cm2 and 1 kg/cm2 respectively. The angle of internal friction of the sand will be nearly

In a direct shear test the shear stress and normal stress on a dry san

1.	In a direct shear test the shear stress and normal stress on a dry sand sample at failure are 0.6 kg/cm2 and 1 kg/cm2 respectively. The angle of internal friction of the sand will be nearly
A.	25
B.	31
C.	37
D.	43
Answer» C. 37